Name: Commercial Driver's License (CDL) Air Brakes Endorsement Study Guide
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Commercial Driver's License (CDL) Air Brakes Endorsement Study Guide

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MenuLog inRegisterInstall the appJavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser.Who Replied?The Air Brakes Endorsement is required if you plan to drive a vehicle equipped with air brakes. Below is a comprehensive study guide that will assist you in preparing for this endorsement.Understanding Air BrakesAir brakes use compressed air to make the brakes work. They are used in large, heavy vehicles, particularly those that need to carry and stop loads over long distances and downhill.Air CompressorUnderstand the function of the air compressor. It is driven by the engine through belts or a gear. The compressor fills the air storage tanks with compressed air.Air Compressor GovernorThe governor controls the air pressure levels in the air tank. Know how the governor works with the air compressor to maintain optimal air pressure.Air Storage TanksAir storage tanks are used to store the compressed air. The number of tanks can vary depending on the vehicle.Service Brake SystemUnderstand how applying the brake pedal uses air pressure to stop the vehicle.Parking Brake SystemGrasp the importance of the parking brake system. When the vehicle is parked, these brakes are manually applied for safety.Emergency Brake SystemUnderstand how the emergency brake system works. It is used when the service brakes fail. It uses parts of the service and parking brake systems to stop the vehicle.Brake PedalStudy the brake pedal and its connection to the brake system, including how it controls the air pressure release.Foundation BrakesFoundation brakes are used each time the wheels need to be slowed or stopped. Understand the different types of foundation brakes like 'S-cam' brakes, 'wedge' brakes, and 'disc' brakes.Pre-Trip InspectionA pre-trip inspection of the air brake system is crucial. Study the necessary steps to inspect all components of the air brake system, including leaks, the air compressor, brake drums and shoes, and low air pressure warning devices.Checking Air Pressure Build-UpComprehend the rate of air pressure build-up. It should typically build from 85 to 100 psi within 45 seconds in ideal conditions.Checking Safety ValveThe safety valve protects the tank and the rest of the system from too much pressure. Understand how to test its function.Inspecting Air Tank DrainsUnderstand the need for daily draining of the air tanks to get rid of moisture and compressor oil.Proper Braking TechniquesStudy the different braking techniques, such as controlled braking, stab braking, and their appropriate uses.Brake Fading or FailureUnderstand how and why brake fading or failure might occur, including the effects of overheating and strategies to prevent these occurrences.Low Air PressureUnderstand what happens when the air pressure gets too low and how the spring brakes automatically come on.Stopping DistanceKnow the factors that impact the stopping distance of a vehicle, like perception distance, reaction distance, and braking distance.Know how to identify problems in air brake systems, what could potentially cause them, and how to address these problems. This includes understanding warning signs and signals like low air pressure warnings and system failures.Study safety procedures related to air brakes, including the proper use of air brakes in various weather conditions, downhill braking techniques, and procedures for parking and leaving the vehicle.This study guide should provide a comprehensive overview of what you need to know about air brakes. However, it's recommended to also use other resources like driver's manuals, hands-on training, and practice tests to better prepare for the air brakes endorsement exam.&nbsp;Click to expand...Written byCreate an account or login to commentYou must be a member in order to leave a commentCreate accountCreate an account on our community. It's easy!RegisterLog inAlready have an account? 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MenuLog inRegisterInstall the appJavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser.Who Replied?The Air Brakes Endorsement is required if you plan to drive a vehicle equipped with air brakes. Below is a comprehensive study guide that will assist you in preparing for this endorsement.Understanding Air BrakesAir brakes use compressed air to make the brakes work. They are used in large, heavy...

Commercial Driver's License (CDL) Air Brakes Endorsement Study Guide

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